Attic insulation, air sealing, crawl spaces and walls for homes in Lincolnville — starting with a free assessment that measures the R-value you actually have. The typical home here dates to the late-1980s, and 2% of its 577 homes went up before 1940.
Lincolnville runs to about 1.2 square miles and roughly 1,064 people. It sits about 21 miles northwest of downtown Charleston. That is roughly 577 housing units. The community dates back to 1889. We cover ZIP code 29485.
Our job history shows nothing in Lincolnville so far. Plenty of sites will show you a number here anyway.
The typical home in Lincolnville dates to around the late-1980s. Houses of this vintage usually got batts or blown fiber at whatever the standard of the day was, which is well short of what is recommended now. Most are one top-up away from being right.
Lincolnville was settled in 1867 by seven African American men led by Rev. Richard Harvey Cain, who bought 620 acres from the South Carolina Railroad, and it was incorporated in 1889 and named for Abraham Lincoln. The small town is bordered by Summerville on the north, west and south, with a sliver reaching into Dorchester County.
The Census Bureau estimates 577 homes in Lincolnville. 14 of them (2%) went up before 1940 — 16th of 28 places on this site for pre-1940 housing. The 1970s were the busiest decade, adding 159 of today's homes (28%); 38% predate 1980 and 20% were built in 2000 or later. For Charleston County as a whole the pre-1940 share is 5%, so Lincolnville sits below it.
Of 491 occupied homes, 25% heat with utility gas and 74% with electricity. Electric heat here is less common than across the county (76%), and ranks 22nd of 28 on this site. Which utility program can contribute depends on the heating fuel and on who sends the bill, so that is the first thing an assessment pins down.
60% of occupied homes are owner-occupied and 49% of all homes are single-family detached houses, with 175 mobile homes in the count. Read together, those numbers point toward an attic top-up over postwar fiberglass and an energy assessment before deciding what to fix first.
| Built | Homes | Share | |
|---|---|---|---|
| Before 1940 | 14 | 2% | |
| 1940s | 0 | 0% | |
| 1950s | 30 | 5% | |
| 1960s | 18 | 3% | |
| 1970s | 159 | 28% | |
| 1980s | 94 | 16% | |
| 1990s | 144 | 25% | |
| 2000s | 43 | 7% | |
| 2010s | 52 | 9% | |
| 2020 or later | 23 | 4% |
577 homes, Census ACS 2020–2024 (B25034, B25040, B25003); 491 occupied.
238 of Lincolnville's 577 homes (41%) were built in the 1980s and 1990s. The gaps in houses of that age are the parts nobody sealed: batts stuffed into the rim joist, bare spots over cathedral and tray ceilings, soffit vents buried with no baffles, can lights punched through the ceiling plane. A top-up plus a day of sealing usually covers it.
Lincolnville enforces the South Carolina Energy Standard (the 2009 IECC), by state law. The town's zoning ordinance says a building inspector designated by the town enforces the code Town Council adopted, without naming an edition.
For new work, the attic number under that edition is R-30, with walls at R-13. Set that against the Department of Energy, which recommends R49 for an uninsulated attic in this climate zone and R38 for one that already has a few inches.
Table 402.1.1 of the 2009 IECC, climate zone 3, which South Carolina's Energy Standard Act adopts for the whole state (section 6-10-30 of the South Carolina Code).
There is no published answer for Lincolnville. Neither the permit-required list nor the exemption list mentions insulation or air sealing at all. Lincolnville publishes nothing on whether insulating an existing home needs a permit. Its zoning ordinance says building permits are obtained from the town and are required for all permanent occupiable structures built after the ordinance took effect, and the town's zoning office issues zoning permits. That silence is not permission and it is not a prohibition. We settle it with a phone call before the crew is scheduled.
The published number is 843-873-3261 ext. 3. The department page is here.
Permitting is on us, not on you.
Berkeley Electric Cooperative's own territory map shows none of its service inside Lincolnville; the other electric utility on record for Charleston County is Dominion Energy South Carolina. Dominion Energy South Carolina's Check-up Plus is the big one: 90% of attic insulation, air sealing and duct sealing paid, up to $2,880, until March 31, 2027, for electrically heated homes that have had the free check-up, with the work done by Dominion's approved contractor.
Income-qualified households can apply to Palmetto Community Action Partnership (843-720-5336) for free weatherization instead. The full program rules are in the rebate guide.
Every layer of an insulated attic, explained
Lincolnville borders Summerville. These are the ones we also cover, each with its own energy code and permit rule:
Elsewhere in Charleston County we also cover:
South Carolina sets the residential energy code statewide, so the attic figure is R-30 wherever it is published here; what changes is the permit desk, and 5 of the 7 publish a permit rule for insulation.
| City | Energy code | Attic R required | Permit to insulate | Building dept. |
|---|---|---|---|---|
| Lincolnville | 2009 IECC (state law) | R-30 | Not published | 843-873-3261 ext. 3 |
| Summerville | 2009 IECC (state law) | R-30 | Not published | 843-851-5200 |
| Adams Run | 2009 IECC (state law) | R-30 | Yes | 843-202-6930 |
| Awendaw | 2009 IECC (state law) | R-30 | Yes | 843-202-6930 |
| Charleston | 2009 IECC (state law) | R-30 | Yes | 843-577-5550 |
| Unincorporated Charleston County | 2009 IECC (state law) | R-30 | Yes | 843-202-6930 |
| Edisto Island | 2009 IECC (state law) | R-30 | Yes | 843-202-6930 |
All 22 Charleston County jurisdictions side by side →
Lincolnville enforces the 2009 IECC (state law), which sets R-30 for an attic in new work. Whether it reaches a retrofit of an existing house is not published.
Lincolnville has not published a rule for it; the building department at 843-873-3261 ext. 3 is called before the job starts.
If Dominion Energy South Carolina is your electric utility and the house has electric heat, Check-up Plus pays 90% of attic insulation, air sealing and duct sealing, up to $2,880, through March 31, 2027, through its own contractor. Berkeley Electric's map shows none of its service here. The federal 25C credit ended for work placed in service after December 31, 2025.
The typical home in Lincolnville dates to around the late-1980s; the Census Bureau's 2020-2024 median year built is 1987. Of its 577 homes, 2% went up before 1940 and 20% in 2000 or later. Half the homes here are older than that and half newer; yours may sit at either end.
Code and permit facts checked October 24, 2026, rebates October 24, 2026; housing: Census ACS 2020–2024. Sources: web.archive.org (2) · charlestoncounty.gov (2, 3, 4) · scstatehouse.gov (2) · lincolnvillesc.gov (2, 3) · www2.census.gov (2) · tigerweb.geo.census.gov · llr.sc.gov · en.wikipedia.org (2) · lincolnvillesc.org · nps.gov · dominionenergy.com · berkeleyelectric.coop · santeecooper.com · coastal.coop · energystar.gov · data.census.gov. These change; confirm with the building department at 843-873-3261 ext. 3 or the utility named on your electric bill first.
Free assessment, a measured R-value, and photos you keep either way.
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